All indefinitely means is “not certain”. So it could mean a week… Or a century.
These disks are pretty well understood. You should be good for a decade. At about 12-13 years it’s risky and anything after 15… If it’s still working, count yourself lucky.
Repurposing existing pronouns is the problem. Other languages have nice, gender neutral pronouns. We just need a nice new, singular gender neutral pronoun.
Example…
He/she/fai Him/her/hai
Then make it standard to use the neutral version where gender doesn’t matter. Telling a story about your teacher? Is it pertinent we need to know the gender? No? Then standardize on the neutral version.
English has always been one of the most fluid languages. Why stop now? Just fix it.